Brick-kiln.



G. E. & J. S. SGHOLL.

BRICK KILN.

APPLICATION FILED FEB. 8, 1913 1 081,335 Patented Dec. 16, 1913.

3 SHEETS-SHEET 1.

COLUMBIA PLANDORAPH co., WASHINGTON, n. c.

O. E. & (I. S. SCROLL.

BRICK KILN. APPLIOATION FILED FEB. 3, 1013.

Patented Dec. 16, 1913 3 SHEETS-SHEET 2.

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. E. & J. S. SCHOLL.

BRICK KILN. APPLIOATION FILED FEB s, 1913.

Patented Dec. 16, 1913.

3 8HEETS-SEEET 3.

can one on on o ma fdi 6,4 W g-w STATES CHARLES E. SCI-HELL AND JOHN t3.

arnn'r union.

,SGHOLL, 036' DETROIT, MICHIGAN.

BBIGK-KIILN.

LOSLSSJZ.

Patented ltlcc. it i 913.

Eierial No. 245,985.

To all whom it may concern:

Be it known that we, CHARLES E. Pier-101,1. and Jenn S. ScnoLL, citizens of the United titates of America, residing at Detroit, in the county of l l ayne and State of ll lichigan, have invented certain new and useful Improvements in Brick-Kilns, of which the following is a specification, reference being had therein to the accompanying drawings.

in burning brick in open air kilns, it has been the common practice to form an arch of the brick to be burned with transverse fines or openings into which heat is conducted from furnaces arranged along the sides of the arch. 'lhese furnaces have usually been built in the form of a continuous permanent structure and when the arch is formed of brick to be burned it is built around one end of the furnace with the ends of the furnaces opening into the fines of the arch so that the gases liberated by the burning of the fuel pass directly into the arch and are burned in the arch flues which thus become the combustion chambers for the furnaces. In constructions of this kind it is necessary to provide a sufficient number of furnaces to lire an arch of maximum size and these furnaces, being in the form of a permanent structure, are very much in the way when the arch is burned and it is desired to remove the brick.

Portable furnaces for open air arches have been devised but have not come into general use because of their construction and arrangement, they having been mounted upon track rails at each side of the plat of ground where the arch is to be built and having been arranged to discharge hot air and products of combustion into the arch through connecting pipes. In these furnaces the corebustion took place within the furnace itself and the proper heat could not be secured and regulated in the arch.

This invention relates to a portable furnace construction and arrangement for open air brick kilns which is such that the arch may be formed with the usual lines and the furnaces then placed in position opposite the fines and built in to the ends of the same to form a part of the arch, each furnace being open at one end to discharge freely and directly into the end of the arch flue opposite which it is placed.

A further object of this invention is to provide means for supplying air under pressure to the portable furnaces, said means being so arranged that the air is superheated from the heat of the arch and becomes a pc 'manent supply which is placed below the ground surface so as to be out of the way in removing the burned arch and with which the several furnaces may be connected up, at any desired point, the connections being arranged to permit of the placing of each furnace as desired, thus obviating the necessity for constructing the arch with accuracy.

lit is also an object of the invention to provide other new and useful features in the construction and arrangement of parts all as hereinafter more fully described and more particularly pointed out in the claims reference being had to the accompanying drawings in which- Figure 1 is an end elevation of a kiln embodying the invention with parts broken away to show the construction; Fig. 2 is a side elevation of the same; Fig. 3 is a plan view of the kiln showing the arch and furnaces in a horizontal section; Fig. a is an enlarged vertical section through one of the furnaces and an adjacent portion of the arch; and Fig. 5 is a horizontal section through the furnace.

As shown in the drawings A represents an arch foizred of brick to be burned, with a series of passages or flues B at its base extending, through the same from side to side thereof. When this arch is built it is formed with a shallow recess (1 at each end of each flue B of a size to receive the projecting end 1 of the bodies of the several furnaces 2 which furnaces are each formed with an outer shell 8 of sheet metal and a lining at of lire brick or other suitable material ioiciing a lire chamber 5 of the desired dimensions which chamber discharges through an enlarged opening 0 in the end 1 of the body.

The front end of each furnace is provided with a front plate having doors 7 for the insertion of fuel which is burned upon a grate 8 comprising a series of rocking grate bars 9 having longitudinal air passages 10 therein and a series of small discharge ducts 11 leading from these passages through the upper faces of the bars to supply air for combustion. Each grate bar has a downwardly extending arm connected to an operating bar 13 which is actuated by a handle l t attached thereto adjacent to the front of the furnace. The body of each fur nace is preferably mounted upon suitable runners such as wheels 15 secured upon transverse axles and adapted to carry the furnace longitudinally.

The usual roof structure D is provided to protect the arch and this roof is supported by posts E arranged along each side of the arch with cross members F to which members is secured an eye beam 16 or other member forming an overhead track extending along each side of the arch directly above the several furnaces. Upon this track is a suitable carrier 17 to which tackle blocks 18 are attached for lifting the furnaces and forming a suitable carrier for moving them from place to place along the track as desired. In this construction a roof structure of any desired length is provided with the tracks 16 extending the full length thereof. An arch to be burned may be built of any desired length and then by means of the tracks and hoist the necessary number of furnaces may be placed opposite the several recesses at the ends of the flues in the arch. These furnaces are then moved longitudinally upon their runners to engage their rear ends with the recesses in the arch. The crack or opening around the end of each furnace within its recess in the arch is then filled in with any suitable filling to make a tight joint and connect the furnaces with the arche which discharge their gases, liberated by the burning of the fuel, freely into the ends of the arch flues which flues thus become combustion chambers, and the proper degree of heat is maintained therein and accurately regulated by the regulation of the several furnaces.

To supply ir under pressure to the several furnaces an air compressor or similar device indicated at 19 in Fig. 8, is provided and laid beneath the surface of the ground from this compressor, is a main 20 from which other mains extend longitudinally of the plat of ground beneath the roof structure D upon which an arch or several arches may be built. Extending laterally from the mains are branches 21 leading to suitable boxes 22 adjacent to the surface of the ground inwhich are shut-off valves 23 located at points substantially in the line of the outer ends of the several furnaces when the same are in operative position. Extending along one side of each furnace is an air supply pipe 2% and branches 25 leading from this pipe connect the same up with the ends of the hollow grate bars 9. The forward end of the pipe 2% is connected by means of a flexible connection 26 with one of the valves 23 when the furnace is in operative position and thus each furnace after being placed and connected up with the arch as previously described, may be quickly and easily connected up with the air supply by means of the flexible connection 26 which permits of a variations in the placing of the furnaces and thus avoids the necessity for accurately building the arch and locating the recesses C.

Arches of any desired size may be burned as any number of furnaces may be used and it is only necessary to provide a sufficient number of furnaces to fire an arch of desired maximum size, as while one arch is being burned another may be built up and when the burning of the first is completed the furnaces may be moved into position to fire the second arch. This moving of the furnaces leaves the ground clear adjacent to the burned arch so that the brick may be carted away without hindrance, the air supply pipes being located beneath the surface of the ground, permitting of driving across adjacent to the burned arch in any direction. By laying the air mains beneath the surface of the ground on which the arch is built, the waste heat from the arch will heat the air and thus heated air is supplied to the furnace.

By providing an overhead carrier for moving the furnaces, the ground is left free of tracks and each furnace may be set in front of the chambered end of the flue in the arch in which it is to be inserted and then run longitudinally to place with its rear end in the opening of the arch.

Obviously, changes may be made in the construction and arrangement of parts without departing from the spirit of our invention and we therefore do not limit ourselves to the particular construction and arrangement shown.

Having thus fully described our invention what we claim is 1. The combination with an arch formed of brick to be burned and having passages therein at the bottom thereof, of a series of portable furnaces havin extended rear ends projecting into the cues of said passages, and means for supplying air under pressure to the several furnaces comprising air supply pipes located beneath the surface upon which the furnaces are supported, and flexible means for connecting each furnace wit-h an air supply pipe to supply air thereto.

2. The combination with an arch formed of brick to be burned and provided with a series of passages opening through the side of the arch, of a plurality of furnace structures each having an open end projecting into one of the passages, and means for supplying air under pressure to the several furnaces comprising a supply pipe beneath the surface upon which the arch is supported and beneath the several passages therein to be heated by heat from said passages, branches leading from said pipe to points adjacent to the forward ends of the several furnaces, a shut-off valve in each branch, and a flexible connection between each branch and one of the furnaces to supply air to the furnaces for maintaining combustion therein.

3. The combination with an arch formed of brick to be burned having a series of passages extending therethrough and open at their outer ends at the sides of the arch at its bottom, a series of furnace structures having rear ends projecting into the open ends of the passages in the arch and sealed therein, said structures each provided with an outlet in its rear end opening into the passage in the arch, a hollow grate structure in each furnace, means carried by each furnace for conducting air to its grate structure, a main for supplying air under pressure extending beneath the arch and located below the surface upon which the arch rests, branches leading from said main below the surface upon which the furnaces are supported, a shutoff valve in each branch below said surface adjacent to the forward end of each furnace, a flexible connection between each branch and the means for conducting air to the grate structure of each furnace, and overhead carrying means above the several furnaces for moving the same.

4:. The combination of an arch formed of brick to be burned with transverse passages extending therethrough and recesses in the sides of the arch at the open ends of the passages, a series of portable furnaces each having an open rear end projecting into one of said recesses in the arch and sealed therein around said end, a hollow grate structure in each furnace, an air pipe for conducting air to the grate structure carried by each furnace, an air supply main laid within the ground beneath the arch longitudinally thereof, branches extending laterally from the main within the ground to a point adjacent to the forward ends of the furnaces, shut-off valves for the branches located beneath the surface of the ground, flexible connections between the ends of the several branches and the several air pipes carried by the furnaces, a roof structure over the arch having supports, a track carried by said supports and extending longitudinally of the arch above the several furnaces, and hoisting means movable along said track for raising and transporting the furnaces.

In testimony whereof we aflix our signatures in presence of two witnesses.

CHARLES E. SGHOLL. JOHN S. SOHOLL.

Witnesses:

LEWIS E. FLANDERS, ANNA M. Donn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0: Patents, Washington, D. G. 

